Wrench



June l 1926.

, 1,587,233 D. B. HOLLOMAN WRENCH Filed July 29, 1924 Patented June 1, 1926.

UNIT EU ST Aft E; Si

DANIEL B. HOLLOMAN, OE FORT PAYNE,

'ATENT FFECE.

ALABAMA, ASSIGNR 0F ONE-FOUETII TO W. Y. SIIUGART AND ONE-FOURTH TO R. E.4 DAVIS, BOTH OF FORT PAYNE, ALA- BAMA.

WRENCH.

Application 'led Ju1y29, 1924. Serial N'o. 728,910.

This inventionre'lates to wrenches and its object is to provide a wrench of simple but strong construction which may be easily adjusted and will firmly grip the work to turn the same. rllhe invention is illustrated in the accompanying drawing and will be hereinafter fully described, the novel features being particularly pointed out in the appended claim.

In the drawing, Figure 1 is a side elevation of a wrench constructed in accordance with my invention;

Figure 2 is a similar view with parts in section;

Figure 3 is a transverse section.

A wrench embodying my invention includes a shank 1 having a handle 2 at one end and a fixed jaw 3 at its Iopposite end. A yoke 4L is fitted loosely upon the shank 1 so as to slide thereon, and a relatively movable shank 5 is carried by the yoke, said shank 5 'extending away from the handle 2 beyond the fixed jaw and having the cooperating jaw 6 at its free end. The shank 5 is pivotally secured, in the yoke by a pin 7 adjacent the forward side of the yoke, by which term is meant the side more remote from the handle, and near its rear end said shank is provided with a transverse slot 8 through which passes a stop pin 9 carried by the yoke. Between the two Shanks, a yoke block 1() is secured with the yoke, and a spring 11 is secured to said block and bears upon the adjacent edge of the fixed shank 1. Upon the opposite edge of said shank, I provide a longitudinal series of stop teeth 12, preferably of ratchet formation and projecting toward the handle, and the adjacent end of the yoke is closed by a dog 13 sel by the spring 11.

cured rigidly therein and having teeth 14 which are complemental te the teeth 12 and coact therewith to lock the shank in a set position, the teeth being held in engagement A keeper or clip 15 is secured to theshank 1 at or near the jaw 3 and passes loosely around the shank 5 so that the movable jaw is prevented from lateral movement or excessive rocking upon its pivot while it may move freely longitudinally in adjusting the wrench to the work. To accommodate the rocking move- Iment of the movable jaw and shank, the yoke block 10 may be beveled on the face presented@ ,said Shank, sliowlla 16,

In the drawing, the jaws arev shown as formed with serrations or teeth 17 so as to firmly grip a round pipe or red but they may have smooth surfaces whereby they will be particularly adapted to engage a fiatsided nut. if the jaws are open or spread apart sufficiently to clear the work, they may be brought into engagement with the work by merely pressing the movable jaw toward the same, the dog riding easily over the locking teeth on the fixed shank. 'When the jaws are in proper engagement with the work, the pressure on the movable jaw is removed and the teeth 12 and 14 will hold the jaws against separating movement longitudinally of the shank. It will, yof course, be understood that the spring 11 yields to permit the high points of the teeth to ride over each other and brings them into locking engagement immediately after the points are cleared. If the jaws are to be separated in order to engage the work, a slight lateral pressure is exerted upon the yoke at the same time that a forward pressure is eX- erted thereon to hold the dog away from the shank while the jaw is being moved forward to clear the work. The work being engaged, the handle is swung to one side to turn the work home and the handle may be swung through one or more complete revolutions where conditions permit or it may be rocked back and forth in the manner yof a ratchet wrench when necessary. l/Vhen the handle is rocked back and forth, the forward or working stroke will occur with the jaws in firm engagement with the work but on the reverse stroke the pivotal mounting of the movable jaw will permit it to rock and ride over the work, the eX tent of such rocking being limited by the keeper and the stop pin without imposing severe strain on any part. The arrangement and mounting of the two shanks with their jaws enables the user of the wrench to apply ample force to the work without severe physical labor or subjecting the wrench to breaking or bending strain. The wrench is composed of but few parts which may be produced at a low cost and easily and cheaply assembled. The yoke block not only provides an anchor for the spring independent of the Shanks, but eect-ually reenforces the yoke so that it will not twist and disengage the locking teeth. movable jaw has ample rocking movement to permit rapid release and reengagement of jche work but the operative relation of Jche jaws is ef 'feotually maineinecl, and the Wrench may be quickly and easily ecljused to the Work.

Ewing fully cleseiibecl my iuvenion what claim ne new :md (lesite to Secure by Letters-Patent, is c In 21 Wrench, the combina-tion oi a Telatively ixefl shank having a jaw at one end, a yoke spanning said shank, means carried by the yoke and cooperating With the shank to secure the yoke in a set position, a second shank having a, jaw :it one end lio cooperate With the jaw on the iirst-meiitioiiecl shank, seid second shank having e transverse Slot in its end iemote from its jaw and being;V pivoted between its jaw and its slotted end Wit-hin the yoke, and a stop pin carried by the yoke and passing; through the tiensverse slot in the second sha-nk, said slot being coileentiie with the pivot.

)n testimony whereof, I have signed this specilieation.

DANIEL B. HOLLOELLT. 

